Rinnai™ Water Heaters

Tankless Water Heating for the Home

DESIGNED WITH YOUR COMFORT IN MIND

With Rinnai Tankless Water Heaters, homeowners can enjoy an endless supply of hot water. Our tankless technology delivers hot water wherever and whenever it's needed, eliminating the need to prioritize tasks or schedule use. It's a smarter solution.

It's also a more flexible solution. Models are available for nearly every type of home, each with a compact design that delivers endless installation options. Flexibility, convenience and reliability. That's the Rinnai difference.

Water Heater Product
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EFFICIENCY

Rated by a Uniform Energy Factor (UEF), tankless water heaters are a highly efficient hot water appliance and ENERGY STAR® certified units offer additional energy saving benefits.

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DURABILITY

Tankless water heaters are easier to repair than tanks, often eliminating the need to replace the unit. And many offer extended, comprehensive warranties.

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UNLIMITED HOT WATER

Because your water is continuously heated as needed, you’ll never have to choose between taking a hot shower, doing a load of laundry, or running the dishwasher.

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Convenience

Accessories like room motion sensors and push-button water demand are available to help make hot water instantly available when it's needed.

HOW TANKLESS WORKS

No-Hassle Hot Water, When and Where You Need It. With a tankless water heater, your home's cold water is heated only when you need it, and it stays hot until you're done using it. This results in a limitless hot water supply and little to no wasted energy usage.

  • Flame ignites and heats two heat exchangers
  • Water preheats as it passes through the secondary heat exchanger
  • Water continues to heat to desired temperature as it passes through stainless steel primary heat exchanger
  • Water exits the unit and travels to the water fixture where it is needed
  • Flame output adjusts as needed to maintain water temperature during use
  • With usage complete, the flame turns off and water stops flowing

RUR199iN - Recirculating Tankless Water Heater Overview

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Physical

Length: 11.5in
Width: 18.5in
Height: 26.4in
Weight (lbs/kg): 73/33
Equipment Type: Gas Water Heater
Fuel Type: Natural Gas
Installation Type: Indoor
Controller (Standard): Integrated and Control-R™ Wi-Fi Module ships in the box
Controllers (Optional: MC-91-2US, required for recirculation: MC-195T-US
Warranty: Limited 15-year on heat exchanger, 5-year on parts, 1-year on labor
Mobile Home Certified: Yes
Valves Shipped in Box: Yes
Venting Options: Concentric or PVC/CPVC/PP
Ultra Low Nox: Yes
Tankless Rack System™ (TRS/TRW) Compatible: Yes
Wi-Fi Ready: Yes
Extended Service Plan Available: Yes

Electrical

Min./Max. BTU: 15,000/199,000
Uniform Energy Factor: 0.93

Performance

Temp. Range Residential: 98°F-140°F / 37°C-60°C
Min. Avtivation Rate: 0.4 GPM (1.5L/min)
Flow Rate (70°/50° Temp. Rise): 5.4/7.6
Hot Water Flow Rate Range: 0.26-9.8 GPM (1.0-37L/min)
High Altitude Aprroved: Up to 10,200 ft. (3,109 m)
Certifications: AHRI, CSA, ENERGY STAR®

RU199iN - Tankless Water Heater Overview

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Physical

Length: 11.5in
Width: 18.5in
Height: 26.4in
Weight (lbs/kg): 64/29
Installation Type: Indoor
Controller (Standard): Integrated
Controllers (Optional: MC-195T-US, MC-91-2US, MCC-91-2US, Control-R™ Wi-Fi Module
Warranty: Limited 15-year on heat exchanger, 5-year on parts, 1-year on labor
Mobile Home Certified: Yes
Valves Shipped in Box: Yes
Venting Options: Concentric or PVC/CPVC/PP
Ultra Low Nox: Yes
Tankless Rack System™ (TRS/TRW) Compatible: Yes
Wi-Fi Ready: Yes
Extended Service Plan Available: Yes

Electrical

Min./Max. BTU: 15,000/199,000
Uniform Energy Factor: 0.93

Performance

Temp. Range Residential: 98°F-185°F / 37°C-85°C
Min. Avtivation Rate: 0.4 GPM (1.5L/min)
Flow Rate (70°/50° Temp. Rise): 5.4/7.6
Hot Water Flow Rate Range: 0.26-9.8 GPM (1.0-37L/min)
High Altitude Aprroved: Up to 10,200 ft. (3,109 m)
Certifications: AHRI, CSA, ENERGY STAR®

Testimonials

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